Golf ball material and method of preparing the same
US8008392B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2010 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Jul 27, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/025
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The invention provides a golf ball material which is a resin mixture composed of (a) a nonionic olefin-unsaturated carboxylic acid copolymer and/or olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester copolymer having a weight-average molecular weight (Mw) of from 40,000 to 200,000, a weight-average molecular weight (Mw)/number-average molecular weight (Mn) ratio of from 2.5 to 10.0 and an unsaturated carboxylic acid content of at least 16 wt %, (b) a nonionic olefin-unsaturated carboxylic acid copolymer and/or olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester copolymer having a weight-average molecular weight (Mw) of from 40,000 to 200,000, a weight-average molecular weight (Mw)/number-average molecular weight (Mn) ratio of from 4.0 to 10.0 and an unsaturated carboxylic acid content of not more than 15 wt %, (c) an organic acid or a metal salt thereof, and (d) a basic inorganic metal compound for neutralizing at least 70 mol % of acid groups in components (a) to (c), which resin mixture has a Shore D hardness of from 40 to 60. The golf ball material of the invention provides an excellent rebound resilience and durability while maintaining the flo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.